An ultracompact 4×4 photonic switch based on tapered multimode interference

Author

Chang, Wen-Ching ; Lien, Chun-Hung ; Tsai, Pi-Jen ; Wang, Hung-Jen

Author_Institution

Dept. of Electr. Eng., Tamkang Univ., Taipei, Taiwan

fYear

2003

fDate

17-18 Nov. 2003

Firstpage

266

Lastpage

272

Abstract

In this paper, we propose a novel 4×4 photonic switch based on exponential tapered multimode interference (ETMMI). Based on the exponential structure, the smaller device dimensions compared with conventional MMI can be achieved. Moreover, the power switching between multiple output ports are controlled by changing the refractive indices of the index-modulated regions where such self-images occurred. Simulation is completed by the finite-difference beam propagation method (FD-BPM), and it results less insertion loss <0.59dB and low crosstalk level of <-24.3dB.

Keywords

finite difference methods; light interference; optical switches; refractive index; ETMMI; FD-BPM; crosstalk level; exponential structure; exponential tapered multimode interference; finite-difference beam propagation method; index-modulated regions; insertion loss; partial index-modulation; photonic switch; power switching; refractive indices; self-images; Communication switching; Crosstalk; Insertion loss; Interference; Optical fiber communication; Optical losses; Optical refraction; Optical switches; Optical waveguides; Propagation losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices for Microwave and Optoelectronic Applications, 2003. EDMO 2003. The 11th IEEE International Symposium on

Print_ISBN

0-7803-7904-7

Type

conf

DOI

10.1109/EDMO.2003.1260074

Filename

1260074